
doc:   [
    DocGroup({"tag": "h3"}, [
        DocGroup({"tag": "caret", "client": "a"}, []),
        DocChars(" NpD"), DocGroup({"tag": "caret", "client": "c"}, []),
        DocChars("1Vq"), DocGroup({"client": "d", "tag": "caret"}, []),
        DocChars(" ")
    ]),
    DocGroup({"tag": "h3"}, [
        DocChars("o81")
    ]),
    DocGroup({"tag": "h3"}, [
        DocChars("p"), DocGroup({"tag": "caret", "client": "b"}, []),
        DocChars("at\'s up with you?")
    ])
]

a_del: [
    DelGroup([
        DelGroup([]),
        DelChars(4), DelWithGroup([]),
        DelSkip(3), DelWithGroup([]),
        DelSkip(1)
    ]),
    DelGroup([
        DelChars(1), DelSkip(2)
    ])
]
a_add: [
    AddGroup({"tag": "pre"}, []),
    AddGroup({"tag": "bullet"}, [
        AddGroup({"tag": "p"}, [
            AddChars("0x"), AddWithGroup([]),
            AddSkip(1)
        ]),
        AddGroup({"tag": "p"}, [
            AddChars("O"), AddSkip(2), AddWithGroup([]),
            AddSkip(1)
        ])
    ]),
    AddGroup({"tag": "h3"}, [
        AddSkip(1), AddGroup({"tag": "caret", "client": "a"}, []),
        AddSkip(1)
    ])
]

b_del: [
    DelGroup([
        DelWithGroup([]),
        DelSkip(4), DelWithGroup([]),
        DelSkip(3), DelWithGroup([]),
        DelSkip(1)
    ]),
    DelGroup([
        DelChars(3)
    ]),
    DelGroup([
        DelChars(1), DelGroup([]),
        DelChars(2), DelSkip(15)
    ])
]
b_add: [
    AddGroup({"tag": "bullet"}, [
        AddGroup({"tag": "h3"}, [
            AddGroup({"client": "b", "tag": "caret"}, []),
            AddWithGroup([]),
            AddSkip(4), AddWithGroup([]),
            AddSkip(3), AddWithGroup([]),
            AddSkip(1), AddChars("A  W13"), AddSkip(15)
        ])
    ])
]
